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ossila材料CDBP

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产品名称: ossila材料CDBP
产品型号: 120260-01-7
产品展商: Ossila
产品文档:
 MSDS cdbp

简单介绍


ossila材料CDBP  的详细介绍

CDBP, host material in blue, green, red and white OLED and TADF devices

High-purity and available online for priority dispatch, Sublimed ≥99.0%, 4,4'-Bis(9-carbazolyl)-2,2'-dimethylbiphenyl, CAS No. 120260-01-7


CDBP has a large bandgap (E = 3.4 eV) and a high triplet energy level (T1 = 3.0 eV). It is used as a fluorescent and phosphorescent host material in blue, green, red and white OLED and TADF devices.

The high triplet energy level of CDBP is caused by the steric twisting from the methyl groups (in the 2 and 2′ position) of the biphenyl core. Compared to CBP and mCBP, CDBP has higher tendency to form excimers due to the localization of the of the excitation onto the both ends of the carbazole units.

CDBP can also function as an exciton-blocking layer - it can block excitons migrating from the emitting layer into the hole-transport layer.

General Information


CAS number 120260-01-7
Full name 4,4'-Bis(9-carbazolyl)-2,2'-dimethylbiphenyl
Chemical formula C38H28N2
Molecular weight 512.64 g/mol
Absorption λmax 292 nm in THF
Fluorescence λmax 364 nm in THF
HOMO/LUMO HOMO = 6.1 eV, LUMO = 2.7 eV [1]
Synonyms 9-[4-(4-Carbazol-9-yl-2-methylphenyl)-3-methylphenyl]carbazole, 9,9'-(2,2'-Dimethylbiphenyl-4,4'-diyl)bis(9H-carbazole)
Classification / Family Carbazole derivative, Fluorescent host materials, Phosphorescent host materials, Hole-transport layer materials, Exciton-blocking layer materials, TADF-OLED materials, Organic electronics, Sublimed materials.

Product Details


Purity Sublimed > 99% (HPLC)
Melting point Tg = 94 °C (lit.)
Appearance White crystals/powder
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